Dogcows Code - chaz/openbox/blob - otk/font.hh

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2 #ifndef   __font_hh
   3 #define   __font_hh
   4
   5 #include "ustring.hh"
   6
   7 extern "C" {
   8 #include <X11/Xlib.h>
   9 #define _XFT_NO_COMPAT_ // no Xft 1 API
  10 #include <X11/Xft/Xft.h>
  11 }
  12
  13 #include <assert.h>
  14
  15 namespace otk {
  16
  17 class Color;
  18
  19 class Font {
  20   /*
  21    * static members
  22    */
  23 private:
  24   static std::string  _fallback_font;
  25   static bool         _xft_init;
  26
  27 public:
  28   // the fallback is only used for X fonts, not for Xft fonts, since it is
  29   // assumed that X fonts will be the fallback from Xft.
  30   inline static std::string fallbackFont(void) { return _fallback_font; }
  31   inline static void setFallbackFont(const std::string &f)
  32     { _fallback_font = f; }
  33
  34   /*
  35    * instance members
  36    */
  37 private:
  38   int               _screen_num;
  39
  40   std::string       _fontstring;
  41
  42   bool              _shadow;
  43   unsigned char     _offset;
  44   unsigned char     _tint;
  45
  46   XftFont          *_xftfont;
  47
  48   bool createXftFont(void);
  49
  50 public:
  51   // loads an Xft font
  52   Font(int screen_num, const std::string &fontstring, bool shadow,
  53         unsigned char offset, unsigned char tint);
  54   virtual ~Font();
  55
  56   inline const std::string &fontstring() const { return _fontstring; }
  57
  58   unsigned int height() const;
  59   unsigned int maxCharWidth() const;
  60
  61   unsigned int measureString(const ustring &string) const;
  62
  63   //! Draws a string into an XftDraw object
  64   /*!
  65     Be Warned: If you use an XftDraw object and a color, or a font from
  66     different screens, you WILL have unpredictable results! :)
  67   */
  68   void drawString(XftDraw *d, int x, int y, const Color &color,
  69                   const ustring &string) const;
  70 };
  71
  72 }
  73
  74 #endif // __font_hh